/* Definitions for CPP library.
Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
- 2004, 2005, 2007, 2008, 2009
+ 2004, 2005, 2007, 2008, 2009, 2010
Free Software Foundation, Inc.
Written by Per Bothner, 1994-95.
#include "symtab.h"
#include "line-map.h"
-#ifdef __cplusplus
-extern "C" {
-#endif
-
typedef struct cpp_reader cpp_reader;
typedef struct cpp_buffer cpp_buffer;
typedef struct cpp_options cpp_options;
TK(WSTRING, LITERAL) /* L"string" */ \
TK(STRING16, LITERAL) /* u"string" */ \
TK(STRING32, LITERAL) /* U"string" */ \
+ TK(UTF8STRING, LITERAL) /* u8"string" */ \
TK(OBJC_STRING, LITERAL) /* @"string" - Objective-C */ \
TK(HEADER_NAME, LITERAL) /* <stdio.h> in #include */ \
\
#undef TK
/* C language kind, used when calling cpp_create_reader. */
-enum c_lang {CLK_GNUC89 = 0, CLK_GNUC99, CLK_STDC89, CLK_STDC94, CLK_STDC99,
+enum c_lang {CLK_GNUC89 = 0, CLK_GNUC99, CLK_GNUC1X,
+ CLK_STDC89, CLK_STDC94, CLK_STDC99, CLK_STDC1X,
CLK_GNUCXX, CLK_CXX98, CLK_GNUCXX0X, CLK_CXX0X, CLK_ASM};
/* Payload of a NUMBER, STRING, CHAR or COMMENT token. */
-struct cpp_string GTY(())
-{
+struct GTY(()) cpp_string {
unsigned int len;
const unsigned char *text;
};
#define BOL (1 << 6) /* Token at beginning of line. */
#define PURE_ZERO (1 << 7) /* Single 0 digit, used by the C++ frontend,
set in c-lex.c. */
+#define SP_DIGRAPH (1 << 8) /* # or ## token was a digraph. */
+#define SP_PREV_WHITE (1 << 9) /* If whitespace before a ##
+ operator, or before this token
+ after a # operator. */
/* Specify which field, if any, of the cpp_token union is used. */
CPP_TOKEN_FLD_SOURCE,
CPP_TOKEN_FLD_STR,
CPP_TOKEN_FLD_ARG_NO,
+ CPP_TOKEN_FLD_TOKEN_NO,
CPP_TOKEN_FLD_PRAGMA,
CPP_TOKEN_FLD_NONE
};
+/* A macro argument in the cpp_token union. */
+struct GTY(()) cpp_macro_arg {
+ /* Argument number. */
+ unsigned int arg_no;
+};
+
+/* An identifier in the cpp_token union. */
+struct GTY(()) cpp_identifier {
+ /* The canonical (UTF-8) spelling of the identifier. */
+ cpp_hashnode *
+ GTY ((nested_ptr (union tree_node,
+ "%h ? CPP_HASHNODE (GCC_IDENT_TO_HT_IDENT (%h)) : NULL",
+ "%h ? HT_IDENT_TO_GCC_IDENT (HT_NODE (%h)) : NULL")))
+ node;
+};
+
/* A preprocessing token. This has been carefully packed and should
occupy 16 bytes on 32-bit hosts and 24 bytes on 64-bit hosts. */
-struct cpp_token GTY(())
-{
+struct GTY(()) cpp_token {
source_location src_loc; /* Location of first char of token. */
ENUM_BITFIELD(cpp_ttype) type : CHAR_BIT; /* token type */
- unsigned char flags; /* flags - see above */
+ unsigned short flags; /* flags - see above */
union cpp_token_u
{
/* An identifier. */
- cpp_hashnode *
- GTY ((nested_ptr (union tree_node,
- "%h ? CPP_HASHNODE (GCC_IDENT_TO_HT_IDENT (%h)) : NULL",
- "%h ? HT_IDENT_TO_GCC_IDENT (HT_NODE (%h)) : NULL"),
- tag ("CPP_TOKEN_FLD_NODE")))
- node;
+ struct cpp_identifier GTY ((tag ("CPP_TOKEN_FLD_NODE"))) node;
/* Inherit padding from this token. */
cpp_token * GTY ((tag ("CPP_TOKEN_FLD_SOURCE"))) source;
struct cpp_string GTY ((tag ("CPP_TOKEN_FLD_STR"))) str;
/* Argument no. for a CPP_MACRO_ARG. */
- unsigned int GTY ((tag ("CPP_TOKEN_FLD_ARG_NO"))) arg_no;
+ struct cpp_macro_arg GTY ((tag ("CPP_TOKEN_FLD_ARG_NO"))) macro_arg;
+
+ /* Original token no. for a CPP_PASTE (from a sequence of
+ consecutive paste tokens in a macro expansion). */
+ unsigned int GTY ((tag ("CPP_TOKEN_FLD_TOKEN_NO"))) token_no;
/* Caller-supplied identifier for a CPP_PRAGMA. */
unsigned int GTY ((tag ("CPP_TOKEN_FLD_PRAGMA"))) pragma;
bother trying to do macro expansion and whatnot. */
unsigned char preprocessed;
- /* Print column number in error messages. */
- unsigned char show_column;
-
/* Nonzero means handle C++ alternate operator names. */
unsigned char operator_names;
+ /* Nonzero means warn about use of C++ alternate operator names. */
+ unsigned char warn_cxx_operator_names;
+
/* True for traditional preprocessing. */
unsigned char traditional;
/* If true, no dependency is generated on the main file. */
bool ignore_main_file;
+
+ /* If true, intend to use the preprocessor output (e.g., for compilation)
+ in addition to the dependency info. */
+ bool need_preprocessor_output;
} deps;
/* Target-specific features set by the front end or client. */
/* Called to emit a diagnostic. This callback receives the
translated message. */
- bool (*error) (cpp_reader *, int, source_location, unsigned int,
+ bool (*error) (cpp_reader *, int, int, source_location, unsigned int,
const char *, va_list *)
- ATTRIBUTE_FPTR_PRINTF(5,0);
+ ATTRIBUTE_FPTR_PRINTF(6,0);
/* Callbacks for when a macro is expanded, or tested (whether
defined or not at the time) in #ifdef, #ifndef or "defined". */
/* Called before #define and #undef or other macro definition
changes are processed. */
void (*before_define) (cpp_reader *);
+ /* Called whenever a macro is expanded or tested.
+ Second argument is the location of the start of the current expansion. */
+ void (*used) (cpp_reader *, source_location, cpp_hashnode *);
+
+ /* Callback that can change a user builtin into normal macro. */
+ bool (*user_builtin_macro) (cpp_reader *, cpp_hashnode *);
};
+#ifdef VMS
+#define INO_T_CPP ino_t ino[3]
+#else
+#define INO_T_CPP ino_t ino
+#endif
+
/* Chain of directories to look for include files in. */
struct cpp_dir
{
/* The C front end uses these to recognize duplicated
directories in the search path. */
- ino_t ino;
+ INO_T_CPP;
dev_t dev;
};
-/* Name under which this program was invoked. */
-extern const char *progname;
-
/* The structure of a node in the hash table. The hash table has
entries for all identifiers: either macros defined by #define
commands (type NT_MACRO), assertions created with #assert
identifier that behaves like an operator such as "xor".
NODE_DIAGNOSTIC is for speed in lex_token: it indicates a
diagnostic may be required for this node. Currently this only
- applies to __VA_ARGS__ and poisoned identifiers. */
+ applies to __VA_ARGS__, poisoned identifiers, and -Wc++-compat
+ warnings about NODE_OPERATOR. */
/* Hash node flags. */
#define NODE_OPERATOR (1 << 0) /* C++ named operator. */
#define NODE_MACRO_ARG (1 << 6) /* Used during #define processing. */
#define NODE_USED (1 << 7) /* Dumped with -dU. */
#define NODE_CONDITIONAL (1 << 8) /* Conditional macro */
+#define NODE_WARN_OPERATOR (1 << 9) /* Warn about C++ named operator. */
/* Different flavors of hash node. */
enum node_type
/* Different flavors of builtin macro. _Pragma is an operator, but we
handle it with the builtin code for efficiency reasons. */
-enum builtin_type
+enum cpp_builtin_type
{
BT_SPECLINE = 0, /* `__LINE__' */
BT_DATE, /* `__DATE__' */
BT_STDC, /* `__STDC__' */
BT_PRAGMA, /* `_Pragma' operator */
BT_TIMESTAMP, /* `__TIMESTAMP__' */
- BT_COUNTER /* `__COUNTER__' */
+ BT_COUNTER, /* `__COUNTER__' */
+ BT_FIRST_USER, /* User defined builtin macros. */
+ BT_LAST_USER = BT_FIRST_USER + 31
};
#define CPP_HASHNODE(HNODE) ((cpp_hashnode *) (HNODE))
ends. Also used to store CPP identifiers, which are a superset of
identifiers in the grammatical sense. */
-union _cpp_hashnode_value GTY(())
-{
+union GTY(()) _cpp_hashnode_value {
/* If a macro. */
cpp_macro * GTY((tag ("NTV_MACRO"))) macro;
/* Answers to an assertion. */
struct answer * GTY ((tag ("NTV_ANSWER"))) answers;
/* Code for a builtin macro. */
- enum builtin_type GTY ((tag ("NTV_BUILTIN"))) builtin;
+ enum cpp_builtin_type GTY ((tag ("NTV_BUILTIN"))) builtin;
/* Macro argument index. */
unsigned short GTY ((tag ("NTV_ARGUMENT"))) arg_index;
};
-struct cpp_hashnode GTY(())
-{
+struct GTY(()) cpp_hashnode {
struct ht_identifier ident;
unsigned int is_directive : 1;
unsigned int directive_index : 7; /* If is_directive,
then index into directive table.
Otherwise, a NODE_OPERATOR. */
unsigned char rid_code; /* Rid code - for front ends. */
- ENUM_BITFIELD(node_type) type : 7; /* CPP node type. */
- unsigned int flags : 9; /* CPP flags. */
+ ENUM_BITFIELD(node_type) type : 6; /* CPP node type. */
+ unsigned int flags : 10; /* CPP flags. */
union _cpp_hashnode_value GTY ((desc ("CPP_HASHNODE_VALUE_IDX (%1)"))) value;
};
extern const cpp_token *cpp_get_token_with_location (cpp_reader *,
source_location *);
extern const unsigned char *cpp_macro_definition (cpp_reader *,
- const cpp_hashnode *);
+ cpp_hashnode *);
extern void _cpp_backup_tokens (cpp_reader *, unsigned int);
extern const cpp_token *cpp_peek_token (cpp_reader *, int);
-/* Evaluate a CPP_CHAR or CPP_WCHAR token. */
+/* Evaluate a CPP_*CHAR* token. */
extern cppchar_t cpp_interpret_charconst (cpp_reader *, const cpp_token *,
unsigned int *, int *);
-/* Evaluate a vector of CPP_STRING or CPP_WSTRING tokens. */
+/* Evaluate a vector of CPP_*STRING* tokens. */
extern bool cpp_interpret_string (cpp_reader *,
const cpp_string *, size_t,
cpp_string *, enum cpp_ttype);
position in the translation unit with it, use cpp_error_with_line
with a line number of zero. */
-/* Warning, an error with -Werror. */
-#define CPP_DL_WARNING 0x00
-/* Same as CPP_DL_WARNING, except it is not suppressed in system headers. */
-#define CPP_DL_WARNING_SYSHDR 0x01
-/* Warning, an error with -pedantic-errors or -Werror. */
-#define CPP_DL_PEDWARN 0x02
-/* An error. */
-#define CPP_DL_ERROR 0x03
-/* An internal consistency check failed. Prints "internal error: ",
- otherwise the same as CPP_DL_ERROR. */
-#define CPP_DL_ICE 0x04
-/* An informative note following a warning. */
-#define CPP_DL_NOTE 0x05
-/* A fatal error. */
-#define CPP_DL_FATAL 0x06
+enum {
+ /* Warning, an error with -Werror. */
+ CPP_DL_WARNING = 0,
+ /* Same as CPP_DL_WARNING, except it is not suppressed in system headers. */
+ CPP_DL_WARNING_SYSHDR,
+ /* Warning, an error with -pedantic-errors or -Werror. */
+ CPP_DL_PEDWARN,
+ /* An error. */
+ CPP_DL_ERROR,
+ /* An internal consistency check failed. Prints "internal error: ",
+ otherwise the same as CPP_DL_ERROR. */
+ CPP_DL_ICE,
+ /* An informative note following a warning. */
+ CPP_DL_NOTE,
+ /* A fatal error. */
+ CPP_DL_FATAL
+};
+
+/* Warning reason codes. Use a reason code of zero for unclassified warnings
+ and errors that are not warnings. */
+enum {
+ CPP_W_NONE = 0,
+ CPP_W_DEPRECATED,
+ CPP_W_COMMENTS,
+ CPP_W_MISSING_INCLUDE_DIRS,
+ CPP_W_TRIGRAPHS,
+ CPP_W_MULTICHAR,
+ CPP_W_TRADITIONAL,
+ CPP_W_LONG_LONG,
+ CPP_W_ENDIF_LABELS,
+ CPP_W_NUM_SIGN_CHANGE,
+ CPP_W_VARIADIC_MACROS,
+ CPP_W_BUILTIN_MACRO_REDEFINED,
+ CPP_W_DOLLARS,
+ CPP_W_UNDEF,
+ CPP_W_UNUSED_MACROS,
+ CPP_W_CXX_OPERATOR_NAMES,
+ CPP_W_NORMALIZE,
+ CPP_W_INVALID_PCH,
+ CPP_W_WARNING_DIRECTIVE
+};
/* Output a diagnostic of some kind. */
extern bool cpp_error (cpp_reader *, int, const char *msgid, ...)
ATTRIBUTE_PRINTF_3;
+extern bool cpp_warning (cpp_reader *, int, const char *msgid, ...)
+ ATTRIBUTE_PRINTF_3;
+extern bool cpp_pedwarning (cpp_reader *, int, const char *msgid, ...)
+ ATTRIBUTE_PRINTF_3;
+extern bool cpp_warning_syshdr (cpp_reader *, int, const char *msgid, ...)
+ ATTRIBUTE_PRINTF_3;
/* Output a diagnostic with "MSGID: " preceding the
error string of errno. No location is printed. */
/* Same as cpp_error, except additionally specifies a position as a
(translation unit) physical line and physical column. If the line is
zero, then no location is printed. */
-extern bool cpp_error_with_line (cpp_reader *, int, source_location, unsigned,
- const char *msgid, ...) ATTRIBUTE_PRINTF_5;
+extern bool cpp_error_with_line (cpp_reader *, int, source_location,
+ unsigned, const char *msgid, ...)
+ ATTRIBUTE_PRINTF_5;
+extern bool cpp_warning_with_line (cpp_reader *, int, source_location,
+ unsigned, const char *msgid, ...)
+ ATTRIBUTE_PRINTF_5;
+extern bool cpp_pedwarning_with_line (cpp_reader *, int, source_location,
+ unsigned, const char *msgid, ...)
+ ATTRIBUTE_PRINTF_5;
+extern bool cpp_warning_with_line_syshdr (cpp_reader *, int, source_location,
+ unsigned, const char *msgid, ...)
+ ATTRIBUTE_PRINTF_5;
/* In lex.c */
extern int cpp_ideq (const cpp_token *, const char *);
extern unsigned char *cpp_output_line_to_string (cpp_reader *,
const unsigned char *);
extern void cpp_output_token (const cpp_token *, FILE *);
-extern const char *cpp_type2name (enum cpp_ttype);
+extern const char *cpp_type2name (enum cpp_ttype, unsigned char flags);
/* Returns the value of an escape sequence, truncated to the correct
target precision. PSTR points to the input pointer, which is just
after the backslash. LIMIT is how much text we have. WIDE is true
extern int cpp_read_state (cpp_reader *, const char *, FILE *,
struct save_macro_data *);
-#ifdef __cplusplus
-}
-#endif
-
#endif /* ! LIBCPP_CPPLIB_H */
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